When giving a talk or presentation you may want to consider using some kind of visual reinforcement such as OHTs (overhead transparencies), video presentations, LCD projector, Power Point and handouts to help you consolidate everything you are attempting to deliver.
What is a visual aid?
A visual aid is essentially that, a tool that will support your speech or talk and help you with getting your message across. And like most things, some thought, preparation and practice should also be done beforehand to help you use this properly and effectively.
How do I use visual aids?
After you have done your preparation, you should take some time to see where visuals can be inserted into your presentation to use them for maximum effect.
All visuals should serve a purpose, emphasise certain points or key sections of your presentation - if it serves no purpose or does not add to your talk, remove it.